mysqldump(1) MySQL database mysqldump(1)NAMEmysqldump - text-based client for dumping or backing up
mysql databases, tables and or data.
USAGEmysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2
DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
OPTION SYNOPSISmysqldump [-A|--all-databases] [-a|--all] [-#|--debug=...]
[--character-sets-dir=...] [-?|--help] [-B|--databases]
[-c|--complete-insert] [-C|--compress] [--default-charac-
ter-set=...] [-e|--extended-insert] [--add-drop-table]
[--add-locks] [--allow-keywords] [--delayed-insert]
[-F|--flush-logs] [-f|--force] [-h|--host=...]
[-l|--lock-tables] [-n|--no-create-db] [-t|--no-create-
info] [-d|--no-data] [-O|--set-variablevar=option] [--opt]
[-p|--password[=...]] [-P|--port=...] [-q|--quick]
[-Q|--quote-names] [-S|--socket=...] [--tables]
[-T|--tab=...] [-u|--user=#] [-v|--verbose] [-V|--ver-
sion] [-w|--where=] [--delayed] [-e|--extended-insert]
[--fields-terminated-by=...] [--fields-enclosed-by=...]
[--fields-optionally-enclosed-by=...]
[--fields-escaped-by=...] [--lines-terminated-by=...]
[-v|--verbose] [-V|--version] [-O net_buffer_length=#,
where # < 16M]
DESCRIPTION
Dumping definition and data mysql database or table mysql-
dump supports by executing
-A|--all-databases
Dump all the databases. This will be same as
--databases with all databases selected.
-a|--all
Include all MySQL specific create options.
-#|--debug=...
Output debug log. Often this is 'd:t:o,filename`.
--character-sets-dir=...
Directory where character sets are
-?|--help
Display this help message and exit.
-B|--databases
To dump several databases. Note the difference in
usage; In this case no tables are given. All name
arguments are regarded as databasenames.
-c|--complete-insert
Use complete insert statements.
-C|--compress
Use compression in server/client protocol.
--default-character-set=...
Set the default character set
-e|--extended-insert
Allows utilization of the new, much faster INSERT
syntax.
--add-drop-table
Add a 'drop table' before each create.
--add-locks
Add locks around insert statements.
--allow-keywords
Allow creation of column names that are keywords.
--delayed-insert
Insert rows with INSERT DELAYED.
-F|--flush-logs
Flush logs file in server before starting dump.
-f|--force
Continue even if we get an sql-error.
-h|--host=...
Connect to host.
-l|--lock-tables
Lock all tables for read.
-n|--no-create-db
'CREATE DATABASE /*!32312 IF NOT EXISTS*/ db_name;'
will not be put in the output. The above line will
be added otherwise, if --databases or
--all-databases option was given.
-t|--no-create-info
Don't write table creation info.
-d|--no-data
No row information.
-O|--set-variable var=option
give a variable a value. --help lists variables
--opt Same as --add-drop-table--add-locks--all
--extended-insert --quick --lock-tables
-p|--password[=...]
Password to use when connecting to server. If
password is not given it's solicited on the tty.
-P|--port=...
Port number to use for connection.
-q|--quick
Don't buffer query, dump directly to stdout.
-Q|--quote-names
Quote table and column names with `
-S|--socket=...
Socket file to use for connection.
--tables
Overrides option --databases(-B).
-T|--tab=...
Creates tab separated textfile for each table to
given path. (creates .sql and .txt files). NOTE:
This only works if mysqldump is run on the same
machine as the mysqld daemon.
-u|--user=#
User for login if not current user.
-v|--verbose
Print info about the various stages.
-V|--version
Output version information and exit.
-w|--where=
dump only selected records; QUOTES mandatory!
--delayed
Insert rows with the INSERT DELAYED command.
-e|--extended-insert
Use the new multiline INSERT syntax. (Gives more
compact and faster inserts statements.)
--fields-terminated-by=...
--fields-enclosed-by=...
--fields-optionally-enclosed-by=...
--fields-escaped-by=...
--lines-terminated-by=...
These options are used with the -T option
and have the same meaning as the correspond-
ing clauses for LOAD DATA INFILE. See Mysql
manual section 7.23 LOAD DATA INFILE Syntax.
-v|--verbose
Verbose mode. Print out more information on
what the program does.
-V|--version
Print version information and exit.
-O net_buffer_length=#, where # < 16M
When creating multi-row-insert statements
(as with option --extended-insert or --opt
), mysqldump will create rows up to
net_buffer_length length. If you increase
this variable, you should also ensure that
the max_allowed_packet variable in the MySQL
server is bigger than the net_buffer_length.
EXAMPLES
The most normal use of mysqldump is probably for
making a backup of whole databases. See Mysql Man-
ual section 21.2 Database Backups.
mysqldump--opt database > backup-file.sql
You can read this back into MySQL with:
mysql database < backup-file.sql
or
mysql -e 'source /patch-to-backup/backup-file.sql'
database
However, it's also very useful to populate another
MySQL server with information from a database:
mysqldump--opt database | mysql --host=remote-host
-C database
It is possible to dump several databases with one
command:
mysqldump--databases database1 [ database2
database3... ] > my_databases.sql
If all the databases are wanted, one can use:
mysqldump--all-databases > all_databases.sql
SEE ALSO
isamchk (1), isamlog (1), mysqlaccess (1), mysqlad-
min (1), mysqlbug (1), mysqld (1), mysqldump (1),
mysqlshow (1), msql2mysql (1), perror (1), replace
(1), mysqld_safe (1), which1 (1), zap (1),
AUTHOR
Ver 1.0, distribution 3.23.29a Michael (Monty)
Widenius (monty@tcx.se), TCX Datakonsult AB
(http://www.tcx.se). This software comes with no
warranty. Manual page by L. (Kill-9) Pedersen
(kill-9@kill-9.dk), Mercurmedia Data Model Archi-
tect / system developer (http://www.mercurme-
dia.com)
MySQL 4.0 19 December 2000 mysqldump(1)
